Posts: 10
Joined: 4/14/2003 From: United States Status: offline
Wuz up guys! I just got a 94 Cobra about a month ago and I want to upgrade the exhaust. I was thinkin about throwin on Flowmaster American Thunders and puttin on either and H-PIPE OR X-PIPE. I'm not sure which one to put on though. I would appreciate the advice and the opinions on which one to get. Thanks fellas!!!!!
Posts: 10
Joined: 4/14/2003 From: United States Status: offline
I found a great article. READ:For any performance exhaust system, some type of crossover connecting the two sides of a dual exhaust system is important because it acts to balance the two banks of the engine. The common H-style crossover is good at balancing sound pulses between the two halves, but does little to promote scavenging because the exhaust gases tend to follow the path of least resistance, which is straight through each pipe rather than taking the 90-degree turn through the H-pipe into the other half of the system. In an X-pipe system, however, where the two sides of the system intersect, the gasses have no choice but to intermingle as they pass through the junction. This promotes improved scavenging effects by smoothing out uneven exhaust pulses from the engine’s firing order. It also helps quiet down the exhaust, resulting in a mellower, less raspy tone. According to Magnaflow, the faster acceleration of the gasses through an X-pipe causes them to flow in a linear fashion parallel to the walls of the tubing rather than tumbling. This “laminar” flowing gas is much quieter than tumbling gas, resulting in an exhaust tone up to 8 decibels quieter than a traditional H-pipe......
Posts: 282
Joined: 3/7/2003 From: United States Status: offline
X is a lil more raspier, more of a raw sound. The only car I know well that has an H on it has Bullet mufflers, which are quiet, and the H is a stock w/ gutted cats. IMHO, that car sounds like ass. Maybe it's the mufflers, but I don't like the way it sounds. To me, the X gives off a meaner tone, it sounds like hp instead of just being loud.
Disclaimer: Opinions expressed represent my opinions only, and any use of these opinions is subject to a fine of giving me your car. And I don't want the beater.
Posts: 363
Joined: 2/15/2003 From: United States Status: offline
everyone has their own opinion on what sounds good, but the truth is that the x does infact perform better. sexystang even posted an article that explains it up above
Posts: 2
Joined: 5/11/2003 From: United States Status: offline
I have a 95 cobra. I had a bassani X pipe W/ high flow cats . I didn't like the sound, more raspy then thundering. I went back to an H-pipe, but had Mac 1-5/8" Longtube headers installed and now have flowmasters . Great sound and greatly improved torque with long tubes, and MAC makes a pro-chamber similar to an x-pipe but it works w/ Longtubes, but spike 306 is right, everyone has an oppinion on sound, but the X-pipe gives more hp.
Posts: 7
Joined: 4/23/2003 From: United States Status: offline
i have an 85 gt with long tube headers, then the h pipe then to flowmasters, when its registered im sure ill be getting a bunch of tickets for the exhaust :P
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x-pipe or h-pipe - 
They remind me of my son's and my own HPI nitro cars.
